This paper considers tool support for variability management, with a particular focus on product derivation, as common in industrial software development. We show that tools for software product lines and product derivation have quite different approaches and data models. We argue that combining both can be very valuable for integration and consistency of data. In our approach, we illustrate how product derivation and variability management can be based on existing version management tools.

An edited version of this paper will be published after the workshop comments have been incorporated.

The second paper is a position paper about applying open source development practices in the context of software product line development:

Open source projects have a characteristic set of development practices that is, in many cases, very different from the way many Software Product Families are developed. Yet the problems these practices are tailored for are very similar. This paper examines what these practices are and how they might be integrated into Software Product Family development.